The guyed tower looks solidly built and guyed when I saw it a few weeks ago on way to find a restaurant in Midland. 275 footer with dish at 150ft level Jaime Solorza On Mar 4, 2015 10:44 AM, "Chuck McCown" <[email protected]> wrote:
> Monopoles are subject to the vortex shedding problem causing them to > oscillate. If the axis of the sway causes the dish to aim high and then > low it would do exactly what Jaime is guessing it is doing. > > I would suggest mount the antennas lower if possible and/or use smaller > dishes. There is plenty of signal. > 2’ or 18” would still work just fine at that range. > > > > *From:* Bill Prince <[email protected]> > *Sent:* Wednesday, March 04, 2015 10:35 AM > *To:* [email protected] > *Subject:* Re: [AFMUG] Smart guys on lost question > > I would think the other way. Many guyed towers are not 100% stable in > rotation, and running a PTP link from one would likely require torque > arrestors. > > bp > <part15sbs{at}gmail{dot}com> > > > On 3/4/2015 8:51 AM, Jaime Solorza wrote: > > The FCC document they gave me says 21 dBm tx power and that what is set on > radios according to guy who hired me to help verify path. One 3 ft dish > is on huge guyed tower and another on a monopole with several other drums > and a sectors. They experience signal drops during high winds. my guess > just from little data giving to me is that monopole is oscillating enough > to affect path with signal drops. It is a very windy area and according > to their IT guy this is when they see some issues. Link doesn't drop > completely but alarms in windy season allot. > > > Jaime Solorza > Wireless Systems Architect > 915-861-1390 > > On Wed, Mar 4, 2015 at 9:43 AM, Josh Luthman <[email protected]> > wrote: > >> Always listen to the manufacturer. I don't anyone has ever come up with >> a case where their figure was noticeably off. Certainly never not on the >> side of caution. >> >> Are you using their full tx power or the tx power of the highest >> modulation? >> >> >> Josh Luthman >> Office: 937-552-2340 >> Direct: 937-552-2343 >> 1100 Wayne St >> Suite 1337 >> Troy, OH 45373 >> >> On Wed, Mar 4, 2015 at 11:31 AM, Jaime Solorza <[email protected] >> > wrote: >> >>> Hello Smart Dudes on the list: >>> Running a 3.348 mile path for 18 Ghz Dragonwave link to compare what >>> someone else came up with. I am wondering if they used just unfaded free >>> space loss calculation and coming up with a figure 10dB better than mine, >>> I am using unfaded urban area free space loss for mime. I use just free >>> space loss we are within 3db of each other. I added 1 db of cable loss >>> since I do not know if waveguide was used or many other details. I will >>> get all that information on site. >>> I have always engineered paths on conservative side since the start. >>> >>> What are your thoughts Hobson? >>> >>> Thx >>> >>> >>> Jaime Solorza >>> Wireless Systems Architect >>> 915-861-1390 >>> >> >> > > > >
